Nokia Customer Care NPL-4/5 Series Transceivers System Module and User Interface Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care [This page left intentionally blank] Page 2 Copyright © 2004 Nokia Corporation. All rights reserved.
Nokia Customer Care NPL-4/5 System Module and User Interface Table of Contents Page No Glossary of Terms..................................................................................................................................... 7 Introduction ........................................................................................................................................... 10 Electrical modules ..............................................................................................
NPL-4/5 System Module and User Interface Nokia Customer Care Tilt (s).................................................................................................................................................. 45 HW Block Diagram ............................................................................................................................... 46 HW block functions ...........................................................................................................................
Nokia Customer Care NPL-4/5 System Module and User Interface Keyboard LEDs driver .........................................................................................................................68 Display and air bubble LED driver ..................................................................................................69 Flashlight LEDs driver ........................................................................................................................69 Internal microphone ...
NPL-4/5 System Module and User Interface Fig 22 Fig 23 Fig 24 Fig 25 Fig 26 Fig 27 Fig 28 Fig 29 Fig 30 Fig 31 Fig 32 Fig 33 Fig 34 Fig 35 Fig 36 Fig 37 Fig 38 Fig 39 Fig 40 Page 6 Nokia Customer Care Timing and Voltage Level l ............................................................................................................. 60 What Happened on Calibration (Track on x/y Plane while rotating) ................................. 63 Clock Distribution Diagram........................................
Nokia Customer Care NPL-4/5 System Module and User Interface Glossary of Terms ACI Accessory Control Interface ADC Analog-Digital Converter AEC Acoustic Echo Canceller AFC Automatic Frequency Control AGC Automatic Gain Control AIF Application Interface API Application Programming Interface ARM Processor architecture ASIC Application Specific Integrated Circuit BB Baseband CCI Camera Control Interface CCP Compact Camera Port CMT Cellular Mobile Telephone (MCU and DSP) CPU Central
NPL-4/5 System Module and User Interface Page 8 Nokia Customer Care EGSM Extended – GSM EFR Enhanced Full Rate EGPRS Enhanced General Packet Radio Service EMC Electromagnetic compatibility EMI Electromagnetic Interference EXT RF External RF FBUS Asynchronous Full Duplex Serial Bus GPRS General Packet Radio Service GSM Global System for Mobile communications HS Half Rate Speech HSCSD High Speed Circuit Switched Data IC Integrated Circuit I/O Input/Output IrDA Infrared Associatio
Nokia Customer Care NPL-4/5 System Module and User Interface PCMCIA PC Memory Card International Association PIFA Planar Inverted F-antenna PWB Printed Wiring Board RF Radio Frequency SIM Subscriber Identity Module UEMEK Enhanced Universal Energy Management UI User Interface UPP Universal Phone Processor VCXO Voltage Controlled Crystal Oscillator VCTCXO Voltage Controlled Temperature Compensated Crystal Oscillator. Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care Introduction Electrical modules The system module consists of Radio Frequency (RF) and baseband (BB). User Interface (UI) contains display, keyboard, IR link, vibra, HF/HS connector and audio parts. FM radio is located on the main PWB. The electrical part of the keyboard is located in separate UI PWB. It is connected to radio PWB through spring connectors.
Nokia Customer Care NPL-4/5 System Module and User Interface Temperature conditions Specifications are met within range of -10...+55 deg. C ambient temperature Storage temperature range -40...+70 deg. C Humidity Relative humidity range is 5... 95%. This module is not protected against water. Condensated or splashed water might cause malfunction momentary. Long term wetness will cause permanent damage. Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care System Module The System module (or Engine) consists of Baseband and RF sub-modules, each described below. Baseband module Product NPL-4/5 is a DCT4 Active segment phone. There are two variants: An EGSM900 / GSM1800 / GSM1900 phone and a US variant with GSM850/1800/1900. The HW has the following features: • HSCSD, GPRS (MSC10) and EGPRS (MSC6) • DCT4 engine with UPP8M v3.5 and UEMEk v1.
NPL-4/5 System Module and User Interface Nokia Customer Care Technical summary The picture below shows the main Baseband function blocks Figure 2: Baseband blocks. RF Interface Compass LCD PSRAM COMBO Passive colour STN 128Mbit Flash 16Mbit PSRAM SIM Vibra UEMEk Keyboard Illumination D-class Amplifier IHF UPP8M v3 Keyboard Display Illumination 1.
NPL-4/5 System Module and User Interface Nokia Customer Care UEMEK is a dual voltage circuit, the digital parts are running from the baseband supply 1.8V and the analog parts are running from the analog supply 2.78V. VBAT is directly used for Vibra, LED-driver, Audio amplifier and FCI (Functional Cover Interface). The baseband architecture supports a power saving function called ”sleep mode”. This sleep mode shuts off the VCTCXO, which is used as system clock source for both RF and baseband.
NPL-4/5 System Module and User Interface Nokia Customer Care PWB Characteristics of the PWB 8 layer board Double side assembled Figure 3: PWB vias Buried via through internal layers TOP RCC Via through all layers Blind vias BOTTOM RCC DC characteristics Table 1: Battery voltage range Issue 1 05/04 Signal Note Battery Voltage (Idle) -0.3…5.5V Battery Voltage (Call) Max 4.8V Charger Input Voltage -0.3V …16V Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care Table 2: UEMEK Regulators Name VANA Voltage (V) Min 2.7 Nom 2.78 Max 2.86 Current (mA) Max Sleep Max 80 VFLASH1 VIO VCORE 2.61 1.72 1.48 2.78 1.8 1.57 2.95 1.88 1.66 70 150 200 1.5 0.5 0.2 VAUX1 1.745 1.8 1.855 50 0.5 VAUX2 VAUX3 VSIM 2.91 2.7 2.7 1.745 3 2.78 2.78 1.8 3.09 2.86 2.86 1.855 70 10 25 0.5 0.5 0.5 VR1A/B VR2 2.91 4.6 2.7 3 4.75 2.78 3.09 4.9 2.86 10 100 - VR3 VR4 VR5 VR6 VR7 -2.61 2.7 2.7 2.7 2.7 2.
NPL-4/5 System Module and User Interface Nokia Customer Care Table 3: 1-3 External Regulators Signal name VCAMDIG Min 1.755 Voltage (V) Nom 1.8 Max 1.845 VANA_EXT 2.72 2.8 2.88 Issue 1 05/04 Current (mA) Note Sleep Iq Max 0.0015 150 Power supply for camera digital parts. Imax = 150mA. Cam and HWA max current 60mA 0.0015 150 Power supply for camera, compass and FMradio analog parts. Imax = 150mA. Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 4: Power Distribution Diagram VR1A VR1B RF VR2 VR3 VR4 VR5 VCORE UPP v3.5 COMBO 128/16M Ext. 2.8V regulator UEMEk VR6 VR7 IPA1 VBATRF VBAT SIM VSIM IPA2 IPA3 VIO VANA UEME analog parts COMPASS FMRadio HWA and Camera LCD CSTN VAUX1 VAUX3 VFLASH1 Charger VAUX2 UEME digital parts Ext. 1.
NPL-4/5 System Module and User Interface Nokia Customer Care Table 4: AC and DC Characteristics of DCT4 RF-Baseband Voltage Supplies Signal name VBAT VR1A VR1B VR2 From Battery UEMEK UEMEK To PA & UEMEK HELGO85 HELGO85 VR3 UEMEK VCTCXO, HELGO85 VR4 UEMEK HELGO85 Parameter Voltage Current Current drawn by PA when ”off” Voltage Current Noise density Voltage Current Noise density f=100Hz f>300Hz Voltage Current Noise density Voltage Min Typ 2.95 4.6 2.7 Max 3.6 4.2 V 0.
NPL-4/5 System Module and User Interface Nokia Customer Care Table 5: AC and DC Characteristics of DCT4 RF-Baseband Voltage Supplies VR6 UEMEK HELGO85 VR7 UEMEK SHF VCO VrefRF01 UEMEK HELGO85 Voltage Current Noise density BW=100Hz. .. 100kHz Voltage Current Noise density 100Hz
NPL-4/5 System Module and User Interface Nokia Customer Care Table 6: AC and DC Characteristics of DCT4 RF-Baseband Digital Signals Signal From name UPP TXP (RFGenOut3 ) TXA UPP RFBusEna1 UPP X RFBusData UPP RFBusClk UPP UPP RESET (GENIO06) To HELGO85 HELGO85 HELGO85 HELGO85 HELGO85 HELGO85 Parameter ”1” ”0” Load Resistance Load Capacitanc e Timing Accuracy ”1” ”0” Load Resistance Load Capacitanc e Timing Accuracy ”1” ”0” Current Load resistance Load capacitance ”1” ”0” Load resistance Load
NPL-4/5 System Module and User Interface Nokia Customer Care Table 7: AC and DC Characteristics of DCT4 RF-Baseband Analogue Signals Signal name VCTCXO From VCTCXO To UPP VCTCXOGnd VCTCXO UPP RXI/RXQ UEMEK HELGO85 TXIP / TXIN UEMEK TXQP / TXQN AFC HELGO88 UEMEK HELGO85 UEMEK VCTCXO Parameter Frequency Signal amplitude Input Impedance Input Capacitanc e Harmonic Content Clear signal window (no glitch) Min Typ 13 0.2 0.
NPL-4/5 System Module and User Interface Nokia Customer Care TxC UEMEK HELGO85 0.1 V Voltage Min 2.4 RFTemp DC_sense HELGO85 PA IPA1 / IPA2 UEMEK VCTCXOTE MP PA sheet UEMEK UEMEK PA Max Source Impedance Resolution Voltage at 20oC Voltage at +25oC Voltage at +60oC Voltage Output Voltage Current range Resolution Current tolerance Noise density f=100 Hz800kHz f=800kHz100MHz UEMEK A/D Voltage 200 Ω 10 1,7 1,79 0.6 0 Temperatur e sensor of RF in HELGO ASIC.
NPL-4/5 System Module and User Interface Nokia Customer Care UI board interface signals Table 8: UI board interface signals Pin 1 Signal ROW(0) Min 0.7xVIO 2 COL(0) 0.7xVIO 3 ROW(1) 0.7xVIO 4 COL(1) 0.7xVIO 5 ROW(2) 0.7xVIO 6 COL(2) 0.7xVIO 7 ROW(3) 0.7xVIO 8 COL(3) 0.7xVIO 9 COL(4) 0.7xVIO 10 ROW(4) 0.7xVIO 11 Temp 12 13 GND VLED- 14 VLED+ Nom VIO Condition Note High Keyboard matrix 0 0.3xVIO VIO Low High 0 0.3xVIO VIO Low High 0.3xVIO VIO Low High 0.
NPL-4/5 System Module and User Interface Nokia Customer Care Display interface signals Table 9: LCD connector Pin Signal 1 VDDI Min 1.72V 2 RESX 0.7*VDDI 0 1us 0.7*VDDI 0 100ns VDDI Logic ’1’ 0.3*VDDI Logic ’0’ trw VDDI Logic ’1’ 0.3*VDDI Logic ’0’ tsds 100ns 0.7*VDDI 0 tsdh Data hold time VDDI Logic ’1’ Serial clock 0.3*VDDI Logic ’0’ input 6.5MHz Max frequency 250ns 100ns 100ns 0.7*VDDI 0 60ns tscyc tshw tslw VDDI Logic ’1’ 0.3*VDDI Logic ’0’ tcss 3 SDA 4 SCLK 5 CSX Nom 1.8V Max 1.
NPL-4/5 System Module and User Interface Nokia Customer Care System connector interface signals Table 10: DC Connector Pin 1 Signal VCHAR Min 7.0 VRMS 2 CHGND Nom Max Condition Note 11.1Vpeak 16.9 Vpeak Standard charger Charger positive input 7.9 VRMS 1.0 Apeak 8.4 VRMS 9.2 VRMS Fast charger 850 mA 0 Charger ground Table 11: POPPORT System Connector/Bottom Connector Pin Signal 1 CHARGE 2 GND 3 ACI 4 VOUT Description Spectral U/I levels Impedance Range V Charge DC 0-9 V / 0.
NPL-4/5 System Module and User Interface Nokia Customer Care SIM interface signals Table 12: SIM Connector Pin 1 2 3 4 Name VSIM SIMRST SIMCLK DATA 5 NC 6 GND Issue 1 05/04 Parameter 1.8V SIM Card 3V SIM Card 1.8V SIM Card 3V SIM Card Frequency Trise/Tfall 1.8V Voh 1.8V Vol 3V Voh 3V Vol 1.8V Voh 1.8V Vol 3V Voh 3V Vol 1.8V Vih 0.9xVSIM 0 0.9xVSIM 0 0.9xVSIM 0 0.9xVSIM 0 0.7xVSIM 1.8V Vil 0 0.15xVSIM 3V Vil 3V Vil 0.7xVSIM 0 VSIM 0.15xVSIM GND Min 1.6 Typ 1.8 Max 1.9 Unit V 2.
NPL-4/5 System Module and User Interface Nokia Customer Care FCI interface signals Table 13: FCI Interface BB Signal FCI Signal VBATT VOUT Min 2.80V 0 Nom Max 5.5V 110 0.5 2 0.5 1.9V 0.51V 2.6 Condition V mA Ω impedance uF Ω impedance High Low kΩ 2 120 1.9V 0.51V 2.6 pF High Low kΩ 100 120 1.9V 0.51V 130 pF High Low kΩ 1.80V 120 1.9V 0.51V 1.88V pF High Low V 1 GND GenIO(22) In/Out GenIO(2) Out GenIO(25) In GenIO(18) In VIO GND FCI SDA FCI SCL FCI INT CTRL VCC 1.19V 0 1.4 1.
NPL-4/5 System Module and User Interface Nokia Customer Care LCDUI(1) RXDA In/Out LCDCamTxD a LCDUI(0) DACLK Out LCDCamClk 1.4V 0 1.8V 1.88V 0.4V High Low Camera data signal 1.4V 0 1.8V 1.88V 0.4V High Low Camera data clock FM radio interface signals Table 15: FM-radio Interface BB Signal FM Radio Signal Min Nom Max 2.7V 2.78V 2.86V IMax 10.5mA Vcc(vco) 2.7V 2.78V 2.86V IMax 940uA Vccd 2.7V 2.78V 2.86V IMax 3.9mA FMClk 1.4V 1.8V 1.88V High 0.
NPL-4/5 System Module and User Interface Nokia Customer Care Compass interface signals Table 16: Compass Interface BB Signal VANA_EXT MagIC Signal AVDD Min 2.72V Nom 2.80V Max 2.88V Condition V VIO DVDD 1.72V 1.80V 1.88V V GenIO(3) Out CLK 1.4V 0 1.8V 1.88V 0.4V CBUSCLK Out CBUSDA In/Out CBUSENX Out PURX CBUSCLK 1.4V 0V 1.4V 0 1.4V 0 1.4V 1.88V 0.4V 1.88V 0.6V 1.88V 0.4V 1.88V High Low MHz High Low High Low High Low High 0.4V Low CBUSDA CBUSENX ClrX 0 Page 30 13 1.8V 1.8V 1.
Nokia Customer Care NPL-4/5 System Module and User Interface Functional Description Modes of operation Wv1 baseband engine has six different functional modes: 1. No supply 2. Backup 3. Acting Dead 4. Active 5. Sleep 6. Charging No supply In NO_SUPPLY mode, the phone has no supply voltage. This mode is due to disconnection of main battery and backup battery or low battery voltage level in both of the batteries. Phone is exiting from NO_SUPPLY mode when sufficient battery voltage level is detected.
NPL-4/5 System Module and User Interface Nokia Customer Care VR1A can be enabled or disabled. VR2 can be enabled or disabled and its output voltage can be programmed to be 2.78V or 3.3V. VR4 -VR7 can be enabled, disabled, or forced into low quiescent current mode. VR3 is always enabled in Active mode. Table 17: Regulator Controls Regulator VFLASH1 VAUX2 NOTE Enabled Controlled by register writing VAUX1 Default state is off. Controlled by register writing. Defaul start up setting 1.
Nokia Customer Care NPL-4/5 System Module and User Interface When SLEEPX signal (low) is detected UEMEK enters SLEEP mode. VCORE, VIO and VFLASH1 regulators are put into low quiescent current mode. All the RF regulators are disabled in SLEEP. When SLEEPX=1 detected UEMEK enters ACTIVE mode and all functions are activated.
NPL-4/5 System Module and User Interface Nokia Customer Care UEMEK internal watchdog is running during the UEMEK reset state, with the longest watchdog time selected. If the watchdog expires, the UEMEK returns to power off state. The UEMEK watchdog is internally acknowledged at the rising edge of the PURX signal in order to always give the same watchdog response time to the MCU. Power up with PWR key When the Power on key is pressed the UEMEK enters the power up sequence.
NPL-4/5 System Module and User Interface Nokia Customer Care Table 18: BL-5B Characteristics Description Nominal discharge cut-off voltage Value 3.1V Nominal battery voltage 3.7V Nominal charging voltage 4.
NPL-4/5 System Module and User Interface Nokia Customer Care A/D channels The UEMEK contains the following A/D converter channels that are used for several measurement purposes. The general slow A/D converter is a 10-bit converter using the UEMEK interface clock for the conversion. An interrupt will be given at the end of the measurement. The UEMEK’s 11-channel analog to digital converter is used to monitor charging functions, battery functions, user interface and RF functions.
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 6: Camera Connections to Baseband REG 2.8V GenIO(01) REG 1.8V UPP VANA_EXT VDIG HW Accelerator LCDCamTxDa LCDUI(1) CCISCL CCIDA Camera CCPCLKN LCDCamClk LCDUI(0) CCPCLKP CamRxDa GenIO(27) CCPDATAN CamCSX GenIO(28) CCPDATAP CamSDX GenIO(26) CamClk GenIO(3) VGA camera has a resolution of 640 x 480. Pixel size is 5.6um x 5.6um.
NPL-4/5 System Module and User Interface Nokia Customer Care Electrical compass The compass will have two magnetometer channels and it uses anisotropic magnetoresistive (AMR) magnetometer component (containing both X- and Y-axes). Each measurement axis is configured as a 4-element Whetstone bridge converting the magnetic field into differential output voltage. This sensor element is capable of sensing fields in milligauss range.
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 9: Ambient Temperature Sensor Interface to BB VANA R211, 12k 5% UEMEk AuxDet R212, 68k 1% A/D MUX Headint2 Slow ADC R101,10k NTC 1% UI board Backup battery Backup battery is used in case when main battery is either removed or dis-charged. Backup battery is used for keeping realtime clock running for minimum of 30 minutes. Rechargeable backup battery is connected between UEMEK VBACK and GND.
NPL-4/5 System Module and User Interface Nokia Customer Care age. It is only allowed to change the SIM supply voltage when the SIM IF is powered down. The whole SIM interface locates in two chips UPP and UEMEK. The SIM interface in the UEMEK contains power up/down, port gating, card detect, data receiving, ATRcounter, registers and level shifting buffers logic. The SIM interface is the electrical interface between the Subscriber Identity Module Card (SIM Card) and mobile phone (via UEMEK device).
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 11: FCI Interface Terminal Functional Cover FCI ASIP EN Switch + Short Circuit protection VBAT ferrite FC_Vout ferrite Reg. Cout Cin VIO GenIO_18 GenIO_22 UPP GenIO_2 ferrite FC_SDA ferrite ferrite FC_SCL ferrite ferrite GenIO_25 FC_INT MCU ferrite Figure 12: FCI Connector Pin Order on PWB Bottom View 1. 2. 3. 4. Vout GND SDA SCL 5. FCIInt Keypad-side FC conn.
NPL-4/5 System Module and User Interface Nokia Customer Care also be used as data memory and it is byte addressable. RAM is mainly for MCU purposes but also DSP has also access to it if needed. MCU code is stored into external flash memory. Size of the flash is 128Mbit (8M x 16bit). The NPL-4/5 baseband supports a burst mode flash with multiplexed address/data bus. Access to the flash memory is performed as 16-bit access.
Nokia Customer Care NPL-4/5 System Module and User Interface Compass This chapter describes electronic compass function integration to baseband. Measurement is based on magnetoresistive sensor and controlled with baseband ASICs, UPP and UEME via MagIC ASIC. The electronic compass will have two magnetometer channels for detecting x and y direction components of earth magnetic field and it uses Honeywell’s anisotropic magnetoresistive (AMR) magnetometer component HMC1052 (containing both x- and yaxes).
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 13: Earth’s Magnetic Field Heading angle or azimuth (α) The angle between magnetic north and the heading direction. Magnetic north is the direction of xhyh the earth´s field component perpendicular to gravity. Throughout this paper, xhyh will be referred to as “horizontal” component of the earth´s field. The compass heading is defined by: ⎛y ⎞ Heading (α ) = arctan⎜⎜ h ⎟⎟ ⎝ xh ⎠ The azimuth is the reading quantity of a compass.
NPL-4/5 System Module and User Interface Nokia Customer Care with respect to geographic north. Figure 14: Earths’s Magnetic Field Components x (heading direction) azimuth α magnetic north xh declination λ xhyh heading True geographic north inclination δ y (right) yh heading (xyz) = real earth magnetic field direction zh z (down) Tilt (σ) Tilt angle is angle between horizontal level and equipment level. If a compass is tilt, then this inclination has to be considered.
NPL-4/5 System Module and User Interface Nokia Customer Care HW Block Diagram Functionally NPL-4/5 electronic compass consists some main blocks. Figure 15: Block Diagram Ext.
Nokia Customer Care • NPL-4/5 System Module and User Interface offset strap -self test capability for magnetometer -used for production testing MagIC ASIC • A/D converter input interface and for magnetometer sensors -Differential inputs -40 dB amplifier for signal • Control for Set/Reset circuitry -Positive and negative pulses for S/R strap • CBUS interface for UPP -MagIC have dedicated address • System clock from GenIO3 • Main reset from UEME (PURX) • Control of offset strap (RegCtrl) UPP •
NPL-4/5 System Module and User Interface Nokia Customer Care Magnetometer Sensor The magnetometer will be implemented with anisotropic magnetoresistive (AMR) magnetometer component. Two-axis linear magnetic sensors are designed as a Wheatstone bridges formed by a magnetoresistive metal film. Sensor acts as resistor which resistance depends on magnetic field strength and direction. This bridge element is capable of sensing fields in milligauss range.
NPL-4/5 System Module and User Interface Nokia Customer Care Block diagram Figure 16: Magnetometer Sensor Block Diagram Y-axis X-axis S /R il Off il Magnetometer control interface Pin Assignment Table 22: Table 1 Connector pin assignment Pin Number Symbol I/O Description 1 GND2 (A) Ground Measurement bridge A ground 2 Offset+ Input Offset coil positive pin 3 Vo+(A) Output Positive A measurement brigde output 4 Vcc Supply Bias voltage for both measurement bridges 5 NC 6 Offset
NPL-4/5 System Module and User Interface Nokia Customer Care 12 NC 13 GND1 (A) Ground Measurement bridge A ground 14 Vo- (A) Output Negative A measurement bridge output 15 GND1(B) Ground Bridge B ground 16 Vo+ (B) Output Positive B measurement bridge output Figure 17: Pin Assignment In Package Page 50 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care Test Circuitry Based on constant current generator, which drives internal coil on magnetometer chip. Circuit is controlled via general IO –pin on MagIC/RegCtrl. On current is 2.0mA, off current is 0.00mA. Figure 18: Test Circuitry Vana_Ext RegCtrl Constant current driver sensor Figure 19: Offset strap coil current effect y with set x with zero Offset strap current will produce 320 to 420digit offset to raw x and y values.
NPL-4/5 System Module and User Interface Nokia Customer Care Main features The ASIC supports three magnetometer axis.
NPL-4/5 System Module and User Interface Nokia Customer Care The voltage from the magneto-resistive bridge is first amplified with a slow, continuoustime stage. This stage has a passive RC-filter at its input. After that, there is a dedicated, second-order sigma-delta ADC for each measurement channel. The sigma delta ADC is making DC-type of instantaneous measurements and thus it is operated in a single-shot mode and the digital conversion result is obtained by using a simple counter only.
NPL-4/5 System Module and User Interface H3 SRVdd2 Power supply G4 InXm Analog Input 14 H4 InXp Analog Input H5 InYm G5 Nokia Customer Care from UEME via MagIC to tank charge capacitor (1uf) Vdd supply for S/R (two power pads on die, double bonding to one pin) Vo(A) to magnetic sensor XOUT(A) x-axis negative input for A/ converter 3 Vo+ (A) to magnetic sensor XOUT+ (A) x-axis positive input for A/ converter Analog Input 10 Vo(B) Magnetic sensor YOUT(B) y-axis negative input for A/
NPL-4/5 System Module and User Interface Nokia Customer Care B4 CbusEnX Digital Input CBUSENX UPP - UEME – MagIC bidirectional bus CBUS enable MagIC ASIC – UEME interface Table 25: MagIC - UEME interface Pad MagIC Pin Name MagIC Pin Type UEME Pin Name Connection Function A6 ClrX Digital Input PURX General reset generated by UEME Main reset A3 DVdd Power supply VIO Digital power supply / voltage reference Positive Digital Power supply (1.
NPL-4/5 System Module and User Interface Nokia Customer Care MagIC - magnetometer sensor interface for constant current driver Table 27: Offset strap supply interface Pad Pin Name Pin Type D8 RegCtrl (MagIC) Digital output Pad Pin Name Connection Function for magnetometer offset strap constant current driver On/off control Current output Ioff+ to magnetometer sensor offset strap Offset strap current, positive Current input Ioff- Offset strap return current (-) from magnetometer offset s
NPL-4/5 System Module and User Interface Nokia Customer Care Compass and phone basics Phone directions Directions with phone on this document is mentioned on Figure 23 Directions through phone. Sensible use of compass function means that phone (and 2-axis magnetometer) is accurately in horizontal level. This is done with internal builder level (air bubble) on phone. Measured and displayed numerical compass heading is angle between TOP direction and geographical north direction.
NPL-4/5 System Module and User Interface Nokia Customer Care General description Operation modes • Shutdown -MagIC is set to stand-by mode -Logic voltage VIO is always on Analog voltage supply is normally off, but other functions can switch voltage on • Active compass function -External power supply is on -MagIC is set to active mode -System clock is activated • Production test mode -As active mode but also offset strap current is activated Compass function main features Compass display menu Compas
Nokia Customer Care NPL-4/5 System Module and User Interface Compass calibration SW Calibration is needed for compensate external magnetic field and improve performance of compass reading accuracy. User assisted calibration UI SW menu structure • User select checked horizontal plane with no disturbance near of phone • With very slow rotating (about 10s / round) MCU SW will find values for compensation during one round.
NPL-4/5 System Module and User Interface Nokia Customer Care Testpoints Set/Reset Set/Reset pulse after DC separation capacitor C314 Testpoint J327 Figure 22: Timing and Voltage Level l Voltage levels and wave shapes on Testpoint J326 and J327 Timings on Vbridge and over S/R coil >40ms 2.2V 2.2V Vbridge (J326) Vbridge set pulse 2.8V 2.
Nokia Customer Care NPL-4/5 System Module and User Interface Service Software Interface (Phoenix) AMS functions can use some internal parameters for compass functions. Those controls and values are available from Phoenix PCSW /Compass Control.
NPL-4/5 System Module and User Interface Nokia Customer Care Performance Calibration basics Calibration process target is to normalize measured x and y value before calculation to heading angle, exactly: calibration removes harmful effects of phone own Calibration is needed because every phone has different magnetic behaviour and also the geographical places are different Recalibration is needed because phone has drift on magnetization level depending user actions and geographical place changes Basically
Nokia Customer Care NPL-4/5 System Module and User Interface Figure 23: What Happened on Calibration (Track on x/y Plane while rotating) Calibration process flow Set phone to flat surface, far away from metals and magnetic fields Set calibration mode on Gently rotate phone until SW says “success or not” • Speed 10s/ round • Phone must be in all the time on same horizontal level • Check compass functionality after calibration If calibration is not successfully, try again If calibration fails again,
NPL-4/5 System Module and User Interface • Nokia Customer Care typical range –2100 to 1000 Max x and max y • typical range –1000 to 2100 Scorra • typical range 1.0 to 1.5 (and –1.5 to –1.0) Scorrb • typical range 0.0 to 0.5 (and –0.5 to 0.0) • Gain - 0.1 Gauss field, gain min. 300 digit (tilt angle 0 degree) - 0.4 Gauss field, gain max.
NPL-4/5 System Module and User Interface Nokia Customer Care Clock distribution Figure 24: Clock Distribution Diagram VR3 VCTCXO 26 MHz HELGA 26MHz 26 MHz 32 kHz UEM 32 kHz SLEEPX UPP SLICER RFBUSCLK 13MHz CBUSCLK 1MHz MCU DSP PLL DBUSCLK 13MHz LCDCLK max. 6.5MHz CTSI Issue 1 05/04 SIMCLK max. 3.25MHz Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care User Interface Figure 25: User Interface Connections Display NPL-4/5 has 130 x130 pixel 12bpp (bits per pixel) passive matrix color STN display. LCD is connected to transceiver PWB by 10-pin board to board connector. Interface is using 9-bit data transfer. Partial display function is implemented in the module. Figure 26: Display Block Page 66 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care UI Board NPL-4/5 consists of separate UI board, type designate wk4, which includes contacts for the keypad domes, Functional cover interface pads, Thermoter thermistor and LED’s for keypad lighting. UI board is connected to main PWB through 20 pole board-to-board connector with springs. 5x5-matrix keyboard is used in NPL-4/5. Key pressing is detected by scanning procedure. Keypad signals are connected UPP keyboard interface.
NPL-4/5 System Module and User Interface Nokia Customer Care Power supply for LEDs DC/DC converter generates VLED supply voltage for white LEDs. There are two white LEDs connected series in display and on keypad PWB in four branches. The flashlight has one white LED. Feedback resistors R300, R302 and R310 set output voltage. The voltage reference is 0.515V inside the driver. Driver is controlled by the UEMEK via CALLED1 output. This signal is connected to driver EN-pin (on/off).
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 29: Keyboard Led Driver and Control Diagram VLED R=39Ω UI Board DLIGHT Display and air bubble LED driver LEDs are supplied from VLED voltage throught current limiting circuit. Display and air bubble illumination is controlled by DLIGHT –line (UEMEK). BJT driver controls the constant current generator. - Driver will work as constant current generator increase or decrease the output voltage for LEDs to keep the current stable.
NPL-4/5 System Module and User Interface Nokia Customer Care - Driver will work as constant current generator increase or decrease the output voltage for LEDs to keep the current stable. Serial resistance 33R is used to create the current limit with transistor Vbe voltage. Figure 31: Flashlight Driver and Control VLED R=33Ω R=47Ω CallLED2 Internal microphone The internal microphone capsule is mounted into the system connector assy, which is connected to engine board with springs.
NPL-4/5 System Module and User Interface Nokia Customer Care Internal speaker There is a dynamic earpiece with impedance of 32 ohms. The earpiece is low impedance one since the sound pressure is to be generated using current and not voltage as the supply voltage is restricted to 2.7V. The earpiece is driven directly by the UEMEK and the earpiece driver (EARP & EARN outputs) is a fully differential bridge amplifier with 6 dB gain.
NPL-4/5 System Module and User Interface Nokia Customer Care Headset connections NPL-4/5 is designed to support fully differential external audio accessory connection. A headset can be directly connected to Tomahawk system connector. Mono and stereo audios are supported to earpieces and mono for microphone audios. Headset implementation uses separate microphone and earpiece signals. The accessory is detected by the HeadInt signal when the plug is inserted.
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 35: NPL-4/5 Audio Connections UEME EARP EARN GenIO(14) PAOUTP PAOUTN EN IHF amplifier HSEAR R P HFR HFCMR HSEAR R N HF HFCM MICB2 HSEAR P HSEAR N Tomahawk POPPORT MIC2P XMICP MIC2N XMICN MICB1 MIC1N MIC1P Vibra A vibra alerting device is used to generate a vibration signal for an incoming call. Vibra is located in the left side of the phone just above the battery block and it is SMD component.
NPL-4/5 System Module and User Interface Nokia Customer Care RF Module The RF module comprises all RF functions of the NPL-4/5 engine. The US variant NPL-4 includes GSM850/GSM1800/GSM1900 bands and the EU variant NPL-5 EGSM900 / GSM1800 and GSM1900 bands. Both variants support GPRS (MSC10), EGPRS (MSC6) and HSCSD protocols and multislot classes 1to 6. The aim is to introduce Push to talk Over Cellular (PoC) feature in both variants. The core of the RF is the Helgo RF ASIC.
NPL-4/5 System Module and User Interface Nokia Customer Care RF frequency plan Figure 36: RF Frequency plan Helgo GSM: 869-894 MHz 925-960 MHz I-signal Q-signal RX DCS: 1805-1880 MHz PCS: 1930-1990 MHz f/4 f f/2 f 32963980 MHz f f/4 f f/2 PLL AFC DCS: 1710-1785 MHz PCS: 1850-1910 MHz GSM: 26 MHz VCTCXO Buffer 824-849 MHz 880-915 MHz Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care DC characteristics Regulators The transceiver baseband section has a multi function analog ASIC, UEMEK, which contains among other functions six pieces of 2.78 V linear regulators and a 4.8 V switching regulator. All the regulators can be controlled individually by the 2.78 V logic directly or through a control register.
NPL-4/5 System Module and User Interface Nokia Customer Care Power distribution Figure 37: Power distribution diagram UEM 4.75 V [ 4.6V ... 4.9V ] charge pump (VCP) VR1 2.78 V [ 2.70V ... 2.86V ] Tx modulator (Vcc_ModOut) VR2 TX buffer & EDGE ALCs (VRF_TX) 2.78 V [ 2.70V ... 2.86V ] VCTCXO (+VCC) VR3 digital interface (VDIG) 2.78 V [ 2.70V ... 2.86V ] Rx Front End (VRF_RX) VR4 Bias & Rx CH filters (VF_RX) RF controls (VPAB_VLNA) VR5 2.78 V [ 2.70V ... 2.
NPL-4/5 System Module and User Interface Nokia Customer Care RF characteristics Page 78 Parameter Unit and value Cellular System GSM850/900, GSM1800 and GSM1900 Modulation schemes GMSK, 8-PSK RX Frequency Band GSM850: 824- 849 MHz GSM900: 925 - 960 MHz GSM1800: 1805 - 1880 MHz GSM1900: 1930 - 1990 MHz TX Frequency Band GSM850: 869- 894 MHz GSM900: 880 - 915 MHz GSM1800: 1710 - 1785 MHz GSM1900: 1850 - 1910 MHz Output Power GMSK GSM850: +5...+33 dBm / 3.2 mW... 2 W GSM900: +5...+33 dBm / 3.
NPL-4/5 System Module and User Interface Nokia Customer Care RMS Phase Error < 5.0° Peak Phase Error < 20.0° RF block diagram The block diagram of the RF module can be seen below. The detailed functional description is given in the following sections. RF block diagram NPL-4/5 Figure 38: RF Block Diagram Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care Frequency synthesizers The VCO frequency is locked by a phase locked loop (PLL) and VCTCXO which is running at 26 MHz. The frequency of the VCTCXO is in turn locked into the frequency of the base station with the help of an AFC voltage which is generated in UEMEK by an 11 bit D/A (digital-toanalog) converter. The PLL is located in the Helgo and is controlled through the RFBus.
Nokia Customer Care NPL-4/5 System Module and User Interface shifting by 90 degrees which is needed for the demodulator mixers. The demodulator output signals are all differential. After the demodulators the amplifiers convert the differential signals to single ended.
NPL-4/5 System Module and User Interface Nokia Customer Care There are two different amplifier chains in a single amplifier module, one for GSM850/ EGSM900 and one for GSM1800/GSM1900. The lower band power amplifier is able to deliver over 2 W of RF power, while the capability of the upper band amplifier is over 1 W. In the GMSK mode the gain control is implemented by adjusting the bias voltages of the first two transistor stages thereby reaching the dynamic range of over 70 dB.
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 39: Antenna Switch Module RX RX GSM1900 PCS RX RX GSM1800 DCS Ant TX TX GSM850 EGSM900 GSM1800/1900 DCS/PCS EGSM900 RX EGSM 900 GSM850 EGSM900 Power Amplifier The power amplifier includes: - 50 ohm input and output, GSM850/EGSM900 and GSM1800/GSM1900 - internal power detector - EDGE/GSM mode selector Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved.
NPL-4/5 System Module and User Interface Nokia Customer Care Figure 40: Power Amplifier GSM850/EGSM900 EGSM900 out DCS/ GSM1800/1900 PCS out GSM850/EGSM900 EGSM900 in DCS/ GSM1800/1900 PCS in EGSM900 EGSM GSM1800/1900 DCS/PCS Power control Power control Power detector Mode RF ASIC Helgo The RF ASIC module includes: - TFBGA88 - Balanced I/Q demodulator and balanced I/Q modulator - Power control operational amplifier, acts as an error amplifier - The signal from VCO is balanced, frequencies 3296 to
